Hair dryer



FIG. 1 is a perspective view of a hair dryer according to my new design;

FIG. 2 is a front elevation view of FIG. 1;

FIG. 3 is a rear elevation view of FIG. 1;

FIG. 4 is a left side elevation view of FIG. 1;

FIG. 5 is a right side elevation view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1; and,

FIG. 7 is a bottom plan view of FIG. 1.

The broken lines in the drawings depict portions of the hair dryer that form no part of the claimed design. 

CLAIM The ornamental design for a hair dryer, as shown and described. 